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learning interoperability from web2.0
 

learning interoperability from web2.0

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Shoaib Burq Talk on Web2.0 in Government. A talk i recently gave at an Australian Government agency on the lessons from Web2.0 technologies. Download notes: ...

Shoaib Burq Talk on Web2.0 in Government. A talk i recently gave at an Australian Government agency on the lessons from Web2.0 technologies. Download notes: http://sabman.wordpress.com/2007/11/13/learning-interoperability-from-web20/

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  • web2.0 is a very broad area but my focus is quite narrow: that of geographic information and data. the main challenge for government is the sharing of data in a way that encourages innovation. I think this is a common problem. Gov agencies find it hard to see beyond their traditional customer to the bold new web2.0 generation. But things aren't all that bad. check this out: http://www.aec.gov.au/polling_place_locator/index.htm
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  • Thanks, Shoaib this looks like a very interesting show. Web 2.0 and government - a bit of a challenge?<br /><br/>
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  • best viewed with notes:
    http://sabman.files.wordpress.com/2007/11/shoaib_burq_wed_sem_oct07_notes_public.pdf<br /><br/>
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    learning interoperability from web2.0 learning interoperability from web2.0 Presentation Transcript

    • Geomatics Engineer by profession Neogeographer at heart Shoaib Burq
    • quot;It is neither the strongest species that survive, nor the most intelligent, but the ones most responsive to changequot; Charles Darwin
    • lessons in interoperability from web2.0
    • mash up artist my online GIS app
    • The Dongle chastity belt of the early GIS professional
    • 1982
    • Open Geospatial Consortium OGC’s roots are in GRASS/Open Source
    • GIS in Government & University Research GIS in Government, Business & Specialist industry
    • Some OGC Standards  Simple Features Specification  Web Mapping Service (WMS)  Web Feature Service (transactional) (WFS-t)  Web Coverage Service (WCS)  Web Processing Service (WPS)  Sensor Observation Service (SOS)  OGC Catalogue Service (OCS)  Style Layer Descriptor (SLD)
    • OGC specs in action Life Saving Victoria Incident & Hazard Mapping System http://lifesaver.vpac.org
    • Business Objectives collect report decision
    • Technical Objectives “fit for purpose” address all business needs but not too complex for user
    • Technical Objectives work at variable network speeds even 56k
    • Technical Objectives hazards & incidents data collection from remote sites into a server-side repository
    • Technical Objectives distribute LSV corporate data such as ABSAMP database to LSC’s ABSAMP = Australian Beach Safety and Management Program
    • Technical Objectives hierarchical & role-based authentication local - state - national
    • Technical Objectives handle the temporal dimension of hazards e.g. rips may last only a few hours
    • Technical Objectives budgetary limitations leverage open source & free data
    • M a p b u ild e r W M S , W F S - T C lie n t IN T E R N E T S p a t ia l G e t R e q u e s t S p a t ia l P u t R e q u e s t T IE R 1 - W E B A P P L IC A T IO N M a p L a y e rs over H TTP A e r ia l P h o t o ( E C W ) + IN T E R N E T V ic M a p D a t a s e t s G e o s e rv e r (W M S S e rv e r) (W F S -T S e rv e r) T IE R 2 - W E B S E R V IC E S p a t ia l S Q L Q u e r ie s G D A L IO e n g i n e Sp at ia lQ ue r ie s B o u n d a r ie s D a t a P o s t G IS s t o r e f o r T r a n s a c t io n a l D a t a R a s te r /V e c to r R a d a r & W e a th e r D a ta D a ta o n F ile S y s t e m T IE R 3 - S P A T IA L IS E D D A T A B A S E W M S S E R V IC E S B lu e M a r b le Source: http://www.foss4g2006.org/contributionDisplay.py?contribId=69&sessionId=52&confId=1
    • Three Tier Architecture Web Client Application Server Spatial Database
    • PostGIS: Simple Feature Specification
    • Simple Feature Specification
    • PostGIS: Simple Feature Specification
    • Geoserver: WCS, WMS, WFS-T & SLD PostGIS: Simple Feature Specification
    • Web Mapping Service (WMS) dumb image
    • Web Mapping Service (WMS) for humans consumption only
    • Web Mapping Service (WMS) a bit like a scanned PDF document
    • Style Layer Descriptor (SLD) way to specify symbology and … rules on how to render maps & legends
    • Web Feature Service Transactional (WFS-t) actual GML (vector) data
    • Web Feature Service Transactional (WFS-t) for machines consumption
    • Web Feature Service Transactional (WFS-t) a bit like an editable Word document defines create, read, update & delete on geographic features
    • Web Coverage Service (WCS) think WFS for raster actual raster data online for machine consumption
    • Geoserver: WCS, WMS, WFS-T & SLD PostGIS: Simple Feature Specification
    • Mapbuilder: WMS & WFS-T client Geoserver: WCS, WMS, WFS-T & SLD PostGIS: Simple Feature Specification
    • WMS, WFS-t Clients interface humans & complex technology use requests converted to OGC compliant xml decodes the OGC responses for human consumption
    • Mapbuilder: WMS & WFS-T client Geoserver: WCS, WMS, WFS-T & SLD PostGIS: Simple Feature Specification
    • Shapefile Simple GetFeature WFS Feature Spec Oracle GetMap MapBuilder WMS Spatial GetCoverage WCS PostGIS
    • Lets Watch it in Action action
    • Where did I/OGC go wrong? built for interoperability or built using interoperable standards
    • The Second Shift a look at history
    • Day of the long tail
    • “Simple, intuitive and timely access to useful geographic data & information is my right and not a privilege” The new customer
    • It’s easy to dismiss Web2.0 at first glance
    • You cannot be serious!
    • http://kiva.org
    • “Simple, intuitive and timely access to useful geographic data & information is my right and not a privilege” The new customer
    • What do they get from us? WFS, WMS, WCS, WPS, WxS, blah, blah, blah …
    • What do they get from us? forgot it! WFS, WMS, WCS, WPS, WxS, blah, blah, blah …
    • they create their own community standards for sharing data … but are they any good?
    • Are they any good? “These powerful forces are creating ‘tensions’ that impact how we shape and create standards for the global community …
    • Are they any good? “Many of these tensions and associated market forces are the same ones that are driving the evolution of the Web (Web 2.0 and Where 2.0) and the integrated GeoWeb …
    • Are they any good? KML and GeoRSS are two new formats that are making great headway on the Web …
    • Are they any good? … strong collaboration between the quot;traditionalquot; standards community and the Where 2.0 community can provide the greatest benefit for everyone” Can you guess who said this?
    • Are they any good? … strong collaboration between the quot;traditionalquot; standards community and the Where 2.0 community can provide the greatest benefit for everyone” Carl Reed CTO, Open Geospatial Consortium, Inc.
    • let’s take GeoRSS + =
    • Atom & GeoRSS
    • Interoperable out of the box A standard identification system
    • Interoperable out of the box A standard interaction protocol
    • Interoperable out of the box Standard data exchange formats
    • GeoNetwork
    • National Snow & Ice Data Centre http://nsidc.org/news/nsidc_rss.html
    • NOAA Pacific Tsunami Warning Centre http://www.prh.noaa.gov/ptwc/subscribe.php
    • UK Lib Dem Networking Site http://www.flocktogether.org.uk
    • http://mapufacture.com/maps/1268-San-Di
    • http://tsunami.jrc.it/model/getRSS.asp?type=2 http://xrl.us/tsunamimodel
    • http://mapufacture.com/maps/1268-San-Di We want to integrate with everything. We want to integrate with your service and data. And we want to improve, continuously. -- Andrew Turner (Mapufacture)
    • Microformats & Semanitcs http://microformats.org following the GeoRSS philosophy of leveraging existing standards XHTML
    • Microformats & Semanitcs
    • Microformats & Semanitcs Much in the same way that operating systems currently associate particular file types with specific applications, future Web browsers are likely going to associate semantically marked up data you encounter on the Web with specific applications, either on your system or online. -- Alex Faaborg Mozilla Firefox Developer
    • they wanted data didn’t they?
    • www.geonames.org Open Source Geocoding Geonames
    • www.openstreetmap.org Open Source Streets Data
    • http://openaerialmap.org Open Source Aerial Photography
    • Pict’Earth
    • http://hypercube.telascience.org/fire
    • What’s next? Micro Satellites, maybe?
    • Barbarians are at the door! whoever thought of just doing things yourself?
    • other’s are taking notice …
    • “…we have acquired ImageAmerica, a company that builds high resolution cameras for the collection of aerial imagery…”
    • “… acquired Vexcel Corp., a worldwide leader in photogrammetry, imagery and remote sensing technologies …”
    • OGC is responding Google & Microsoft principle members of OGC
    • Web Mapping Service Cache (WMS-C) still a proposal cacheable map image tiles - performance in current GeoServer release
    • What do we do? what role do National Mapping Agencies have in this disruptive environment? threat or opportunity
    • What to do? listen to what they want -- which is to …
    • http://flickr.com/photos/robertgrove/111165074/
    • http://flickr.com/photos/robertgrove/111165074/ “help themselves” “help others” “do good” openness is key
    • Summary
    • quot;It is neither the strongest species that survive, nor the most intelligent, but the ones most responsive to changequot; Charles Darwin
    • Acknowledgements Andrew Turner (GeoRSS examples) http://highearthorbit.com Mikel Maron (GeoRSS examples) http://brainoff.com Charlie Savage (Atom vs. WFS) http://cfis.savagexi.com http://blog.mapbuzz.com/atom_and_wfs.html
    • All those Cool Images Transistor: http://en.wikipedia.org/wiki/Image:Electronic_component_transistors.jpg Assembly Line: http://en.wikipedia.org/wiki/Image:A-line1913.jpg School of Athens: http://en.wikipedia.org/wiki/Image:Sanzio_01.jpg GRASS logo: http://en.wikipedia.org/wiki/Image:Grasslogo_vector_big.png OGC Simple Features: (adapted from) http://opengeospatial.org/ 80’s http://www.nostalgiacentral.com/pop/fashion80.htm Tux http://en.wikipedia.org/wiki/Image:Tux-G2.png Roadkill http://flickr.com/photos/gmblogs/215084239 CD stack http://flickr.com/photos/aenygmatic/416687548 Dongle http://www.bios-passwort.de Grass http://flickr.com/photos/ezu/54539889 Grass (2) http://flickr.com/photos/terdata/287937963 Proprietary http://flickr.com/photos/vrogy/525583222 Web20 http://flickr.com/photos/alexmuse/255998171 Hard Drive http://flickr.com/photos/shadphotos/207233715
    • Thank you Questions & Discussion